sources:
  nginx-1.17.6.tar.gz: 58e27d9be6807a85c1e7f076f75b6ec270b7e72e
  nginx-1.17.6.tar.gz.asc: 2e09ce861527ea67b622c0f939625fa9668a290d
  nginx-logo.png: a609ff4e27b6236233ea576739a6fb040da4d550
  nginx-rtmp-module-1.2.1.tar.gz: 7c6ae1afc117e3bf946b0d81f99d41fe538a7245